Add more bytestring like functions #202

Job	Run time
arm (arm32v7)	6m 2s
darwin_arm (self-hosted, macOS, ARM64, 8.10.7)	28m 13s
arm (arm64v8)	5m 0s
build (ubuntu-latest, 8.0.2, 3.8.1.0)	15m 45s
darwin_arm (self-hosted, macOS, ARM64, 9.2.6)	35m 41s
i386	7m 38s
darwin_arm (self-hosted, macOS, ARM64, 9.4.4)	24m 40s
build (ubuntu-latest, 8.2.2, 3.8.1.0)	10m 3s
build (ubuntu-latest, 8.4.4, 3.8.1.0)	9m 2s
build (ubuntu-latest, 8.6.5, 3.8.1.0)	9m 14s
build (ubuntu-latest, 8.8.4, 3.8.1.0)	7m 48s
build (ubuntu-latest, 8.10.7, 3.8.1.0)	9m 22s
build (ubuntu-latest, 9.0.2, 3.8.1.0)	7m 32s
build (ubuntu-latest, 9.2.7, 3.8.1.0)	5m 58s
build (ubuntu-latest, 9.4.5, 3.8.1.0)	8m 47s
build (ubuntu-latest, 9.6.1, 3.8.1.0)	11m 2s
build (macOS-latest, 9.4.5, 3.8.1.0)	17m 33s
build (macOS-latest, 9.6.1, 3.8.1.0)	20m 11s
build (windows-latest, 9.4.5, 3.8.1.0)	20m 57s
build (windows-latest, 9.6.1, 3.8.1.0)	18m 55s
	4h 39m 23s

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